I wouldn’t say I wasn’t glad the complaints were posted. I almost bought the asset pack until I realized the seller hadn’t made any adjustments from his Unity package (based on complaint posts in forum section). As a buyer I’m grateful that I didn’t have to go through the process of asking for a refund. It’s a hard decision to not post on the forums I think, since everyone knows there’s no other way for others to be aware of what they’re buying into (yet).
With that said, I probably would’ve contacted the seller first and given him 24-48 hours to respond saying the fix was on the way, and if that didn’t happen I’d post with whatever correspondence actually did occur (or if no response, indicate that).